The status of GMSB after 1/fb at the LHC

Yevgeny Kats, Patrick Meade, Matthew Reecec, David Shih

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

We thoroughly investigate the current status of supersymmetry in light of the latest searches at the LHC, using General Gauge Mediation (GGM) as a well-motivated signature generator that leads to many different simplified models. We consider all possible promptly-decaying NLSPs in GGM, and by carefully reinterpreting the existing LHC searches, we derive limits on both colored and electroweak SUSY production. Overall, the coverage of GGM parameter space is quite good, but much discovery potential still remains even at 7TeV. We identify several regions of parameter space where the current searches are the weakest, typically in models with electroweak production, third generation sfermions or squeezed spectra, and we suggest how ATLAS and CMS might modify their search strategies given the understanding of GMSB at 1/fb. In particular, we propose the use of leptonic M T2 to suppress tt̄ backgrounds. Because we express our results in terms of simplified models, they have broader applicability beyond the GGM framework, and give a global view of the current LHC reach. Our results on 3rd generation squark NLSPs in particular can be viewed as setting direct limits on naturalness.

Original languageEnglish (US)
Article number115
JournalJournal of High Energy Physics
Volume2012
Issue number2
DOIs
StatePublished - 2012

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • Supersymmetry phenomenology

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